Thermal conductivities of some materials at room temperature PusatTenaga Malaysia

LIST OF TABLES TABLE TITLE PAGE

2.1 Thermal conductivities of some materials at room temperature

Source: Cengel, Y.A, 2003 13 2.2 Emissivity‘s of some materials at 300K Source: Cengel, Y.A, 2003 14 3.1 Properties of green glazed wall 33 3.2 Properties of pre-cast concrete wall 33 4.1 Summary of current OTTV 41 4.2 Summary of proposed OTTV 42 4.3 Summary of current cooling load 46 4.4 Summary of proposed cooling load 47 4.5 Solar Cooling Load SCL at 12 pm 49 4.6 5.1 Schedule Of Maintenance Total OTTV for each facade elevation 56 63 LIST OF FIGURES FIGURE TITLE PAGE

2.1 PusatTenaga Malaysia

8 2.2 Diamond Building Putrajaya 8 2.3 A simple experiment setup to determine the thermal conductivity of a material Source: Cengel, Y.A, 2003 12 2.4 Radiation heat transfer between a surface and the surfaces surrounding it Source: Cengel, Y.A, 2002 14 2.5 Radiation heat transfer between a surface and the surfaces surrounding it Source: Cengel, Y.A, 2003 15 3.1 Final Year Project Flow Chart 28 3.2 Strategy To Reduce Energy Consumption Of ACMV 29 3.3 Top View With Actual Orientation 31 3.4 West Wall 31 3.5 South Wall 32 3.6 East Wall 32 3.7 North Wall 32 4.1 Refrigerant Compressors 57 4.2 Water Chillers 58 4.3 Cooling Towers 59 4.4 Cooling Chiller Pump 60 4.5 Water Pumpset 60 4.6 Air Filter At Air Handling Unit 64 4.7 Air Handling Unit 64 4.8 Ducting System 64 4.9 Piping System 64 LIST OF SYMBOLS AND ABBREVIATION A area U heat transfer coefficient TD temperature difference CLTD cooling load temperature difference CLTDc corrected cooling load temperature difference Q cooling load SHGF solar heat gain factor SC shading coefficient CLF cooling load vactor RT refrigerant ton LM correction for latitude and month K Thermal Conductivity α Thermal absorptivity ω Specific Humidity m Specific mass flow rate  Relative humidity T Absolute Temperature h Enthalpy fg h Enthalpy of vaporization Q L Latent heat transfer Q S Sensible heat transfer Q Heat transfer rate W Work COP Coefficient of Performance OTTV overall thermal transfer value ACMV air conditioning mechanical ventilation PSM ―projek sarjana muda‖ LIST OF APPENDIXS APPENDIX TITLE A Gantt chart B Table which used for calculation C Plan floor of FKM building MARS CHAPTER 1 INTRODUCTION

1.0 BACKGROUND

The project tries to find ways on reducing the energy consumption of the ACMV air- conditioning and mechanical ventilation system of the FKM building. Air Conditioning is the control of the humidity of air by either increasing or decreasing its moisture content. Added to the control of the humidity is the control of temperature by either heating or cooling the air, the purification of the air by washing or filtering the air and the control of the air motion and ventilation. Ventilation refers to the process of supplying and removing air by natural or mechanical means to and from any space, Such air may or may not be conditioned. Building energy standards or codes are becoming more and more important in energy efficiency policies [1]. These standards can help raise concern and awareness of building energy conservation, promote energy efficient designs in buildings, encourage the development of energy efficient building products, and form a basis for assessing building energy performance and developing energy efficiency programmers [2]. Many countries in the world are now developing or upgrading their building energy standards in order to achieve the energy efficiency goals. In response to broad concerns regarding the environment and climate change, Green Buildings are becoming much more common and are increasingly in demand by building owners and occupiers [3]. As a result, they are featuring more prominently in the portfolios of most building developers, architects and engineering consultants. The current green trends are quickly becoming the new standard.

1.1 OBJECTIVES