Browsing by Author "Liu, M."
Now showing items 21-40 of 90
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Xue, H.; Deng, S.; Claridge, D. E.; Liu, M. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2000)A computer simulation model is an economic and convenient tool to perform analysis of chilled water loop. The primary objective of this paper is developing procedure for simulating and optimizing chilled water loop with ...
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Liu, M.; Barnes, D.; Bunz, K.; Rosenberry, N. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2003)A new building blending station system named by-pass blending station (BBS) has been developed to reduce building pump energy consumption in both district heating and cooling systems. Theoretical investigation demonstrated ...
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Liu, G.; Joo, I. S.; Song, L.; Liu, M. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2003)Fan airflow is the key parameter for air volume tracking control in variable air volume systems. One of the airflow measurement methods is to determine airflow using the fan speed, fan head, and fan curve. Both fan speed ...
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Wang, G.; Liu, M. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2005)
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Joo, I.; Liu, M. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2002)This paper provides analytical tools and engineering methods to evaluate the feasibility of the economizer for dual-duct air-handling units. The results show that the economizer decreases cooling energy consumption without ...
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Feng, J.; Liu, M.; Pang, W. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2007)Enthalpy economizer can theoretically save more energy than temperature based economizer. However, the requirement of outdoor air humidity measurement in the traditional enthalpy economizer control made it impossible. A ...
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Wang, G.; Liu, M. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2001)This paper first investigates the fan energy performance of a constant air volume exhaust system. Two single stack energy efficient exhaust fan systems (E3S3F) are presented. The E3S3F-I has the static pressure sensor ...
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Engineering and Software Requirements of the Automated Building Commissioning Analysis Tool (ABCAT) Claridge, D. E.; Liu, M.; Painter, F.; Wang, G. (Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M University, 2005)Engineering and Software requirements were measured using ABCAT
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Liu, M.; Claridge, D. E. (Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M University; Department of Mechanical Engineering, Texas A&M University, 1993)This report is presented to the Texas Higher Education Coordination Board as a deliverable under the Energy Research and Applications Program Project #227, which targeted reducing the design size of HVAC systems in houses ...
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Liu, M.; Abbas, M.; Veteto, B.; Claridge, D. E.; Bruner, H. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 1998)In the theory and modeling part, the principles of VAV box optimization are investigated. The simulations show that optimizing cold and hot deck reset schedules can significantly reduce the amount of energy consumption. During ...
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Liu, M.; Claridge, D. E. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 1998)Optimal hot and cold deck reset schedules can decrease simultaneous heating and cooling in VAV AHUs comparing with constant cold deck temperature operation. In this paper, optimization models are developed. The energy impacts ...
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Liu, M.; Zheng, K.; Wu, L.; Wang, Z.; Johnson, C. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2007)In Part 1 of this paper, the theoretical models, integrating the fan airflow, fan head, air leakage factors, are developed to analyze the impacts of the static pressure reset on both pressure dependent and pressure independent ...
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Liu, M.; Feng, J.; Wang, Z.; Wu, L.; Zheng, K.; Pang, W. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2007)As for a variable air volume (VAV) system, the air duct static pressure is a typical control variable maintained by modulating supply fan speed. The static pressure equals to the summation of the duct pressure loss downstream ...
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Liu, M.; Zhu, Y.; Claridge, D. E.; White, E. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 1996)Air static pressure must be maintained at a certain level leaving the air-handing unit (AHU) to force a suitable amount of air through the terminal boxes. However, an excessive static pressure level is often used due to ( ...
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Guan, W.; Liu, M.; Wang, J. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 1998)The impacts of the water loop management on the heating and cooling energy consumption are investigated by using model simulation. The simulation results show that the total thermal energy consumption can be increased by ...
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Cui, Y.; Liu, M.; Conger, K. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2003)The LAHU system has been designed, installed, and commissioned in a large university research building. This paper provides detailed information about the demonstration project, including the specific LAHU system ...
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Redmann, N.; Liu, M. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2003)Utilization of the Continuous Commissioning® process is presented in the case of the Consolidated Mission Support Center office building at Travis Air Force Base in Travis, California. The CC® process was applied to the ...
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Turner, W. D.; Liu, M.; Claridge, D. E.; Haberl, J. S. (Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M University; Department of Mechanical Engineering, Texas A&M University, 1996)The term Continuous Commissioning (CC) was first used by engineers at the Energy Systems Lab (ESL) at Texas A&M University to describe an ongoing process which improves the operation of buildings using measured hourly ...
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Song, L.; Liu, M. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2001)This paper presents an integrated air handling unit system (OAHU) for large commercial buildings. The system introduces outside air into the interior section and circulates the return air to the exterior section. Detailed ...
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Sheets, N.; Liu, M. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2003)Although water-cooled chillers are more energy efficient than air-cooled chillers, a majority of chilled water systems use air-cooled chillers. In cold weather climates, air-cooled chillers are capable of functioning in ...