Browsing by Author "Yoshida, H."

Now showing items 1-15 of 15

    • Commissioning of a Coupled Earth Tube and Natural Ventilation System at the Acceptance Phase 
      Pan, S.; Zheng, M.; Yoshida, H. (Energy Systems Laboratory (http://esl.tamu.edu), 2008-10)
      In this paper, the environment and energy performance of an actual coupled earth tube and natural ventilation system in a gymnasium was measured during the acceptance phase in two operation states: no ventilation and natural ...
    • Commissioning of a Coupled Earth Tube and Natural Ventilation System at the Design Phase 
      Yoshida, H.; Pan, S.; Zheng, M. (Texas A&M University (http://www.tamu.edu); Energy Systems Laboratory (http://esl.tamu.edu), 2007)
      Natural ventilation airflow rate is generally calculated using indoor and outdoor temperature difference without consideration of thermal interaction between the ventilated air and the room in simple analytical method based ...
    • Development of an Information Flow Mechanism for Commissioning 
      Miyata, M.; Yoshida, H.; Yoshida, H. (Energy Systems Laboratory (http://esl.tamu.edu), 2008-10)
      The present paper proposes a new information flow mechanism for commissioning and develops tools to make the proposed information flow mechanism feasible. Although many technical tools have been developed in order to reduce ...
    • Energy Consumption Estimation for Room Air-conditioners Using Room Temperature Simulation with One-Minute Intervals 
      Wang, F.; Yoshida, H.; Matsumoto, K. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2006)
      For the purpose of developing optimized control algorithm for room air-conditioners to ensure their energy efficiency, a short time interval (i.e., one minute) simulation of building thermal performance is necessary because ...
    • Estimation of Energy Baseline by Simulation for On-going Commissioning and Energy Saving Retrofit 
      Miyata, M.; Yoshida, H.; Asada, M.; Iwata, T.; Tanabe, Y.; Yanagisawa, T. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2006)
      This paper proposes a method of estimating the adjusted energy baseline using simulation models, which can calculate the energy baseline with various conditions, such as conditions of weather, occupancy and equipment ...
    • Experimental Study of a Cooling Coil and the Validation of its Simulation Model for the Purpose of Commissioning 
      Yamaguchi, H.; Miyata, M.; Oda, H.; Shioya, M.; Watanabe, T.; Niwa, H.; Yoshida, H. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2006)
      For HVAC system commissioning, it is important to evaluate the performance of the cooling coil in an air-handling unit. However, manual evaluation requires a great deal of time and effort. One solution is to predict the ...
    • Fault Detection and Diagnosis Method for VAV Terminal Units 
      Miyata, M.; Yoshida, H.; Asada, M.; Wang, F.; Hashiguchi, S. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2004)
      This paper proposes two fault detection and diagnosis methods for VAV units without a sensor of supply air volume, and the results of applying these methods to a real building are presented. One method detects faults by ...
    • Model Based Commissioning Tool for Air-Conditioning Distribution Systems-APCBC 
      Yoshida, H.; Noda, T. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2014)
    • Model-Based Commissioning for Filters in Room Air Conditioners 
      Wang, F.; Yoshida, H.; Kitagawa, H.; Matsumoto, K.; Goto, K. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2004)
      This paper proposes a model that can estimate filter resistance. Two sorts of value are used as inputs to estimate filter resistance. One is the power consumed by the fan in the indoor unit and the other is the ...
    • Optimal Well-Group Distribution of a Groundwater Source Heat Pump System 
      Liu, Z.; Lu, L.; Yoshida, H. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2006)
      It is critical to determine how the well group arranges for application of the GWSHP system. Based on the fact that water movement is the most important factor influencing heat transfer in an aquifer, this paper presents ...
    • Preliminary Retro-Commissioning Study on Optimal Operation for the Heat Source System of a District Heating Cooling Plant 
      Shingu, H.; Yoshida, H.; Wang, F.; Ono, E. (Energy System Laboratory (http://esl.tamu.edu), 2008-10)
      In order to improve the energy performance of a district heating and cooling (DHC) plant, the expected performance of the plant is studied using simulations based on mathematical models. A complete heat source system model, ...
    • Pressure Differential Analysis of a Laboratory Animal Room 
      Jiang, X.; Liu, Z.; Yoshida, H.; Tang, B. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2006)
      This paper simulated and analyzed the pressure differential of a laboratory animal room by CFD software. Under a certain wind speed, the windward side pressure distribution of laboratory animal room was studied, and the ...
    • Requirements for Commissioning HVAC Systems Using BEMS and Commissioning the BEMS Itself Based on Questionnaire Surveys 
      Yoshida, H.; Vaezi-Nejad, H.; Choiniere, D.; Wang, F. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2004)
      In this paper the present status and requirements for commissioning of HVAC Systems using Building Energy Management Systems (BEMS) and commissioning the BEMS itself are investigated and summarized. The information presented ...
    • Retro-Commissioning and Improvement for District Heating and Cooling System Using Simulation 
      Shingu, H.; Nakajima, R.; Yoshida, H.; Wang, F. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2006)
      In order to improve the energy performance of a district heating and cooling (DHC) system, retro-commissioning was analyzed using visualization method and simulation based on mathematical models, and improved operation ...
    • The Well-Group Distribution of Groundwater Source Heat Pump System Optimized Research 
      Liu, Z.; Lu, L.; Yoshida, H. (Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu), 2006)
      It is the key question that how does the well group arrange for application of GWSHP system. Based on the fact that the water movement is the important factor of heat transfer on aquifer, this paper presents two steps ...