An Environmental Control System – Assessment Model for Camouflaged Shelters

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ARTHUR, J. Howard ;BEARD, J. Taylor ;PATIL, Ashok ;JOHNSTON, Nicholas P.;RIBANDO, Robert J..
An Environmental Control System – Assessment Model for Camouflaged Shelters. 
Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 49, n.11, p. 549-557, july 2017. 
ISSN 0039-2480.
Available at: <https://www.sv-jme.eu/article/an-environmental-control-system-assessment-model-for-camouflaged-shelters/>. Date accessed: 26 apr. 2024. 
doi:http://dx.doi.org/.
Arthur, J., Beard, J., Patil, A., Johnston, N., & Ribando, R.
(2003).
An Environmental Control System – Assessment Model for Camouflaged Shelters.
Strojniški vestnik - Journal of Mechanical Engineering, 49(11), 549-557.
doi:http://dx.doi.org/
@article{.,
	author = {J. Howard  Arthur and J. Taylor  Beard and Ashok  Patil and Nicholas P. Johnston and Robert J. Ribando},
	title = {An Environmental Control System – Assessment Model for Camouflaged Shelters},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {49},
	number = {11},
	year = {2003},
	keywords = {environmental control systems; mathematical algorithms; shelters; assessment models; },
	abstract = {Mathematical algorithms have been developed as the foundation of an environmental assessment model for mobile shelters. The assessment model can be used for sizing the heating and cooling equipment and for evaluating the transient thermal responses of shelters under specified initial heat-up and cool-down conditions. This model differs from standard HVAC load models in the form of the transient responses that can be predicted for the shelter. Currently available commercial and public-domain HVAC models predict transient-load variations and energy usage based upon a fixed inside design temperature. Computer codes such as TRNSYS can predict transient indoor conditions, but require detailed input, which is usually not available for the typical shelter. The new, shelter environmental assessment model has the ability to predict inside temperature as a function of variations in environment condition, HVAC equipment performance, and inside load conditions. The algorithms use a multi-node lumped-capacity model for the shelter walls, the equipment and the air inside the shelter, since each of these elements has an energy-storage capacity. The model includes provisions for modeling camouflage netting as a thermal radiation shield having a negligible energy-storage capacity. Therefore, radiation-shield temperatures are computed from iterative, steady-state energy balances for each time step. The unknown temperatures for the elements with heat capacity are calculated at each point in time using a marching solution combined with the radiation-shield temperatures. The model is designed to accommodate the energy gains from equipment and personnel, and HVAC equipment operational features, with weather data for a specific location or from standard outdoor environmental conditions.},
	issn = {0039-2480},	pages = {549-557},	doi = {},
	url = {https://www.sv-jme.eu/article/an-environmental-control-system-assessment-model-for-camouflaged-shelters/}
}
Arthur, J.,Beard, J.,Patil, A.,Johnston, N.,Ribando, R.
2003 July 49. An Environmental Control System – Assessment Model for Camouflaged Shelters. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 49:11
%A Arthur, J. Howard 
%A Beard, J. Taylor 
%A Patil, Ashok 
%A Johnston, Nicholas P.
%A Ribando, Robert J.
%D 2003
%T An Environmental Control System – Assessment Model for Camouflaged Shelters
%B 2003
%9 environmental control systems; mathematical algorithms; shelters; assessment models; 
%! An Environmental Control System – Assessment Model for Camouflaged Shelters
%K environmental control systems; mathematical algorithms; shelters; assessment models; 
%X Mathematical algorithms have been developed as the foundation of an environmental assessment model for mobile shelters. The assessment model can be used for sizing the heating and cooling equipment and for evaluating the transient thermal responses of shelters under specified initial heat-up and cool-down conditions. This model differs from standard HVAC load models in the form of the transient responses that can be predicted for the shelter. Currently available commercial and public-domain HVAC models predict transient-load variations and energy usage based upon a fixed inside design temperature. Computer codes such as TRNSYS can predict transient indoor conditions, but require detailed input, which is usually not available for the typical shelter. The new, shelter environmental assessment model has the ability to predict inside temperature as a function of variations in environment condition, HVAC equipment performance, and inside load conditions. The algorithms use a multi-node lumped-capacity model for the shelter walls, the equipment and the air inside the shelter, since each of these elements has an energy-storage capacity. The model includes provisions for modeling camouflage netting as a thermal radiation shield having a negligible energy-storage capacity. Therefore, radiation-shield temperatures are computed from iterative, steady-state energy balances for each time step. The unknown temperatures for the elements with heat capacity are calculated at each point in time using a marching solution combined with the radiation-shield temperatures. The model is designed to accommodate the energy gains from equipment and personnel, and HVAC equipment operational features, with weather data for a specific location or from standard outdoor environmental conditions.
%U https://www.sv-jme.eu/article/an-environmental-control-system-assessment-model-for-camouflaged-shelters/
%0 Journal Article
%R 
%& 549
%P 9
%J Strojniški vestnik - Journal of Mechanical Engineering
%V 49
%N 11
%@ 0039-2480
%8 2017-07-07
%7 2017-07-07
Arthur, J. Howard, J. Taylor  Beard, Ashok  Patil, Nicholas P. Johnston, & Robert J. Ribando.
"An Environmental Control System – Assessment Model for Camouflaged Shelters." Strojniški vestnik - Journal of Mechanical Engineering [Online], 49.11 (2003): 549-557. Web.  26 Apr. 2024
TY  - JOUR
AU  - Arthur, J. Howard 
AU  - Beard, J. Taylor 
AU  - Patil, Ashok 
AU  - Johnston, Nicholas P.
AU  - Ribando, Robert J.
PY  - 2003
TI  - An Environmental Control System – Assessment Model for Camouflaged Shelters
JF  - Strojniški vestnik - Journal of Mechanical Engineering
DO  - 
KW  - environmental control systems; mathematical algorithms; shelters; assessment models; 
N2  - Mathematical algorithms have been developed as the foundation of an environmental assessment model for mobile shelters. The assessment model can be used for sizing the heating and cooling equipment and for evaluating the transient thermal responses of shelters under specified initial heat-up and cool-down conditions. This model differs from standard HVAC load models in the form of the transient responses that can be predicted for the shelter. Currently available commercial and public-domain HVAC models predict transient-load variations and energy usage based upon a fixed inside design temperature. Computer codes such as TRNSYS can predict transient indoor conditions, but require detailed input, which is usually not available for the typical shelter. The new, shelter environmental assessment model has the ability to predict inside temperature as a function of variations in environment condition, HVAC equipment performance, and inside load conditions. The algorithms use a multi-node lumped-capacity model for the shelter walls, the equipment and the air inside the shelter, since each of these elements has an energy-storage capacity. The model includes provisions for modeling camouflage netting as a thermal radiation shield having a negligible energy-storage capacity. Therefore, radiation-shield temperatures are computed from iterative, steady-state energy balances for each time step. The unknown temperatures for the elements with heat capacity are calculated at each point in time using a marching solution combined with the radiation-shield temperatures. The model is designed to accommodate the energy gains from equipment and personnel, and HVAC equipment operational features, with weather data for a specific location or from standard outdoor environmental conditions.
UR  - https://www.sv-jme.eu/article/an-environmental-control-system-assessment-model-for-camouflaged-shelters/
@article{{}{.},
	author = {Arthur, J., Beard, J., Patil, A., Johnston, N., Ribando, R.},
	title = {An Environmental Control System – Assessment Model for Camouflaged Shelters},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {49},
	number = {11},
	year = {2003},
	doi = {},
	url = {https://www.sv-jme.eu/article/an-environmental-control-system-assessment-model-for-camouflaged-shelters/}
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TY  - JOUR
AU  - Arthur, J. Howard 
AU  - Beard, J. Taylor 
AU  - Patil, Ashok 
AU  - Johnston, Nicholas P.
AU  - Ribando, Robert J.
PY  - 2017/07/07
TI  - An Environmental Control System – Assessment Model for Camouflaged Shelters
JF  - Strojniški vestnik - Journal of Mechanical Engineering; Vol 49, No 11 (2003): Strojniški vestnik - Journal of Mechanical Engineering
DO  - 
KW  - environmental control systems, mathematical algorithms, shelters, assessment models, 
N2  - Mathematical algorithms have been developed as the foundation of an environmental assessment model for mobile shelters. The assessment model can be used for sizing the heating and cooling equipment and for evaluating the transient thermal responses of shelters under specified initial heat-up and cool-down conditions. This model differs from standard HVAC load models in the form of the transient responses that can be predicted for the shelter. Currently available commercial and public-domain HVAC models predict transient-load variations and energy usage based upon a fixed inside design temperature. Computer codes such as TRNSYS can predict transient indoor conditions, but require detailed input, which is usually not available for the typical shelter. The new, shelter environmental assessment model has the ability to predict inside temperature as a function of variations in environment condition, HVAC equipment performance, and inside load conditions. The algorithms use a multi-node lumped-capacity model for the shelter walls, the equipment and the air inside the shelter, since each of these elements has an energy-storage capacity. The model includes provisions for modeling camouflage netting as a thermal radiation shield having a negligible energy-storage capacity. Therefore, radiation-shield temperatures are computed from iterative, steady-state energy balances for each time step. The unknown temperatures for the elements with heat capacity are calculated at each point in time using a marching solution combined with the radiation-shield temperatures. The model is designed to accommodate the energy gains from equipment and personnel, and HVAC equipment operational features, with weather data for a specific location or from standard outdoor environmental conditions.
UR  - https://www.sv-jme.eu/article/an-environmental-control-system-assessment-model-for-camouflaged-shelters/
Arthur, J. Howard, Beard, J. Taylor, Patil, Ashok, Johnston, Nicholas, AND Ribando, Robert.
"An Environmental Control System – Assessment Model for Camouflaged Shelters" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 49 Number 11 (07 July 2017)

Authors

Affiliations

  • Virginia Military Institute, Lexington, USA
  • University of Virginia, Charlottesville, USA
  • US Army CECOM RD&E Center, Ft. Belvoir, USA
  • US Army CECOM RD&E Center, Ft. Belvoir, USA
  • University of Virginia, Charlottesville, USA

Paper's information

Strojniški vestnik - Journal of Mechanical Engineering 49(2003)11, 549-557
© The Authors, CC-BY 4.0 Int. Change in copyright policy from 2022, Jan 1st.

Mathematical algorithms have been developed as the foundation of an environmental assessment model for mobile shelters. The assessment model can be used for sizing the heating and cooling equipment and for evaluating the transient thermal responses of shelters under specified initial heat-up and cool-down conditions. This model differs from standard HVAC load models in the form of the transient responses that can be predicted for the shelter. Currently available commercial and public-domain HVAC models predict transient-load variations and energy usage based upon a fixed inside design temperature. Computer codes such as TRNSYS can predict transient indoor conditions, but require detailed input, which is usually not available for the typical shelter. The new, shelter environmental assessment model has the ability to predict inside temperature as a function of variations in environment condition, HVAC equipment performance, and inside load conditions. The algorithms use a multi-node lumped-capacity model for the shelter walls, the equipment and the air inside the shelter, since each of these elements has an energy-storage capacity. The model includes provisions for modeling camouflage netting as a thermal radiation shield having a negligible energy-storage capacity. Therefore, radiation-shield temperatures are computed from iterative, steady-state energy balances for each time step. The unknown temperatures for the elements with heat capacity are calculated at each point in time using a marching solution combined with the radiation-shield temperatures. The model is designed to accommodate the energy gains from equipment and personnel, and HVAC equipment operational features, with weather data for a specific location or from standard outdoor environmental conditions.

environmental control systems; mathematical algorithms; shelters; assessment models;