Malaviya National Institute of Technology, Jaipur

A Report onEnergy Auditing of My Home

Submitted To - Submitted by Dr. Vijayakumar K Gaurav JainAssistant Professor (2011 UEE 1104)

DEPARTMENT OF ELECTRICAL ENGINEERING

MALAVIYA NATIONAL INSTITUTE OF TECHNOLOGY JAIPUR

March 2015Objective of Energy Audit Exercise

The objective of Energy Audit is to promote the idea of Energy Conservation in my home. The purpose of the energy audit is to identify, quantify, describe and prioritize cost saving measures relating to energy use in the home. The identified energy conservation opportunities should be analyzed in terms of the costs of implementing the project versus the benefitsthatcanbegained.The purpose of an energy audit is to determine how energy is used in an existing facility, and to quantify it. This helps to identify opportunities to improve the effectiveness with which energy is used.Energy audits can be done for all kinds of installations such as industries, utilities, commercial or office facilities, and homes. This guidance briefly introduces energy audits relevant to office facilities, which is most relevant for INFM members

SLocationAppliancesRatingQty.Avg. Operating HoursUnits/month

1.Drawing Room CFL Fluorescent Tube lightIncandescent BulbCeiling FanAir CoolerTelevision SetRoom heater18W40W15W60W160W100W900W1151111

830.1125514.33.60.22521.6241527

2. Room 1CFL Fluorescent Tube lightIncandescent BulbCeiling FanAir CoolerTelevision Set

14W40W15W60W160W 80W

11111163812552.53.63.621.62412

3.Room 2 CFL Fluorescent Tube lightIncandescent BulbCeiling FanAir CoolerInverter14W40W15W60W160W

114111820.185

3.32.40.18014.42418

4Room 3 CFL Fluorescent Tube lightIncandescent BulbCeiling FanDesktop Computer14W40W15W60W140W1111142444

1.72.41.87.216.8

S.N.Location AppliancesRatingQty.Avg. Operating HoursUnits/month

5 Room 4Fluorescent T.L.Incandescent BulbCeiling Fan40W15W60W

111

4244.8.97.2

6Store Room 1Incandescent Bulb100W

1

0.51.5

7Store Room 2 Incandescent Bulb100W1

0.51.5

8Toilet-1 CFL 14W11.5

9Toilet-2Incandescent Bulb60W10.50.9

10BathroomCFLWashing machineGyser14W350W1500

11120.50.515.222.5

11KitchenCFLRefrigeratorMixer/Blender 18W200W500W1116240.53.21447.5

Total431.9

ENERGY MANAGEMENT STRATEGY

The energy management strategy could vary from site to site. A broad strategy is depicted in the figure below. EFFICIENCY IN ENERGY PRODUCTION, DISTRIBUTION AND USAGEENERGY DEMAND AVOIDANCE OR REDUCTION ENERGY GENERATION OPTIONS USE OF RENEWABLE ENERGY

Step 1: Energy demand reduction or avoidance

The first priority would be to reduce or avoid demand for energy. For example, the possibility for designing a building with optimum level of daylight, thereby reducing use of electricity for lighting.

Step 2: Energy Efficiency

The next step is to consider how to improve energy efficiency in energy generation systems (eg, diesel generators) and energy end use systems (eg, air conditioning system).

Step 3: Energy production options and use of Renewable Energy

The first 2 steps will help to minimize the energy requirements of the facility and identify all energy flows in the system. This will be the right stage to decide on any further changes for the energy supply and production options. This might include looking at options for: Increasing or decreasing the size of existing energy production systems (eg, adding or removing a diesel generator set) Use of renewable energy Co-generation Fuel substitution Recommendations for Better Energy Efficiency Recommendations for Better Energy EfficiencyBased on the analysis of the power consumption data, certain steps have been recommended for improving energy efficiency of the home. Described below are some important recommendations for better energy efficiency:1. Replacing Conventional bulbs with CFL or LED bulbs2. Replacing Resistance Regulator of Fans by Electronic Regulators: Most of the room are very old and so are the fans. Fans here have resistance regulators, saving of 8-10W per fan can be obtained by replacing resistance regulators by electronic regulators.3. Geyser is the device with highest consumption. It is the appliance where maximum power is wasted. Heating water by electricity is the most inefficient way to heat water. Alternatively, heating water for bathing can be accomplished by solar water heating system.4. Some guidelines for most efficient use of ACs: Proper Insulation V Good quality insulation must be maintained in the air conditioned rooms by keeping all doors and windows closed properly so as to prevent cool air go out and hot air come in. Always keep curtains on windows to prevent direct sunlight inside the room to avoid heating of cooled air. This reduces AC load significantly. Proper maintenance and cleaning of ACs is required at regular intervals to make it work at highest efficiency. Any dirt in filter may reduce efficiency of ACs very significantly. The ACs should be switched on 15 minutes before actual use and should be switched off before leaving the room.5. Installation of a master switch outside a room can make it easy for a person to switch off all the appliances of a room in case someone forgets to switch off while leaving the room. This can help improving energy efficiency.

CONCLUSIONThe energy audit was useful in identifying energy consumption. The implementation of energy efficient measures, without compromising comfort level of occupants, can significantly reduce energy consumption in buildings, the energy bills and the correspondent greenhouse gas emissions. An energy audit is the procedure undertaken to identify what, when, and how energy is used in a building and it is the first step to improve the energy efficiency of buildings by identifying opportunities to reduce energy consumption. Proper integration of daylight with artificial light will help in optimizing the energy consumption and thereby reducing the overall cost. To look for possibilities to reduce energy usage by incorporating energy efficient lighting system, equipments and layout changes.