A5073711547- Heat Transfer and Boiling Studies
- Heat Transfer and Optimization
- Refrigeration and Air Conditioning Technologies
- Heat Transfer Mechanisms
- Freezing and Crystallization Processes
- Building Energy and Comfort Optimization
- Meat and Animal Product Quality
- Solar Thermal and Photovoltaic Systems
- Phase Equilibria and Thermodynamics
- Heat transfer and supercritical fluids
- Advanced Thermodynamic Systems and Engines
- Lattice Boltzmann Simulation Studies
- Cyclone Separators and Fluid Dynamics
- Energy Efficiency and Management
- Food Supply Chain Traceability
- Advanced Thermodynamics and Statistical Mechanics
- Food Drying and Modeling
- Microencapsulation and Drying Processes
- Aquaculture Nutrition and Growth
- Marine Bivalve and Aquaculture Studies
- Spacecraft and Cryogenic Technologies
- Textile materials and evaluations
- Fluid Dynamics and Vibration Analysis
- Effects of Environmental Stressors on Livestock
Tokyo University of Marine Science and Technology
2021-2024
Waseda University
2017-2020
University of the Philippines System
2013
Annual heat load, energy consumption and COP of open refrigerated display cabinets (ORDC) driven by pump in supermarkets are assessed means a dedicated performance evaluation method. The system modelling approach is firstly presented, subsequently fitted to experimental data measured within actual equipment working comprehensive range operative conditions. obtained characteristic equations for estimating the load ORDC condensing unit employed first screening results with reference effect...
An annual energy performance evaluation method for open refrigerated display cabinets (ORDC) driven by CO2 heat pumps in supermarkets is established to predict the load, consumption, COP and total emissions. Significant condition variations that affect system are considered. The thermodynamically modelled with reference actual equipment. Experimental data at a comprehensive range of operative conditions fitted then characteristic equations both load ORDC consumption condensing unit obtained....
A mathematical model of a heat-driven ejector refrigeration system that uses geothermal energy as the heat source was established. Philippine low-enthalpy resources were investigated and became bases in computing for at generator part system. Analysis comparison performance cycle considering working fluids like ammonia (R717) R134a refrigerants conducted. The properties those based on an available thermodynamic database various refrigerants. governing principles conservation equations...
This paper discusses the extremisation of entropy production in fluidic networks to gain insight into using non-equilibrium thermodynamics for mathematically formulating thermal engineering transfer phenomena. In study, a variational formulation two-phase flow distribution junction is developed. Moreover, based on representation, it shown that distributed such rate either maximised or minimised. Specifically, considering homogeneous representation an adiabatic network, rates are maximize...
This paper reports an initial step to obtain equally distributed fluid flow in evaporator heat exchanger and eventually increase its performance. Experiments are carried out for R410A, using a vertical header where 20 horizontal parallel flat tubes connected the protrusion depth is half of width. The enters from bottom inlet port there no load applied on tubes. Inlet vapor quality before varied fixed total mass rate 60 kg/h. For each set conditions, at different positions singularly...
In this study, we investigated the behavior of two-phase flow distribution inside a vertical header microchannel heat exchanger (MCHX) that functions as an evaporator pump system. general, refrigerant differs depending on target application, which ranges from small-scale automobile air-conditioners to large-scale building systems. Particularly, it is reported characteristics in MCHX vary extensively according inlet conditions and physical profile header. configurations (header height, branch...
Forced convection heat transfer has been widely studied but not with the inclusion of condensation phenomenon particularly in crossflow a cylinder. In this study, convective moisture air that is relevant for food thawing applications airflow around circular cylinder was investigated. Experiments were carried out represents air-thawing conditions such as Reynolds number within subcritical range, and relative humidity being varied. Heat flux measured at different angles to characterize local...
With an ultimate goal of enhancing the flow distribution within a microchannel heat exchanger, experimental apparatus was designed and constructed. This study presented initial evaluation investigation R410A with mass flowrate 40, 60, 80 kg/h or flux 120, 180, 240 kg/m2s. The inlet vapor quality before header varied at 0.1, 0.2 0.6. entered bottom normal location towards vertical header. 20 horizontal parallel flat tubes having holes were protruded half-width where distributed. Individual...
Microchannel heat exchanger (MCHX) as a cutting edge technology, offers compactness while providing higher transfer capability and thermal energy savings for applications like aeronautics, automotive, manufacturing industries residences. However, due to many microchannels within the MCHX, fluid flow distribution becomes worst. This leads 20 30% degradation. In this paper, behavior of two-phase is presented when microchannel tube protrusion depth (0% 50%) inlet orientation towards header...