Immersion
heaters, storage geysers and running water heaters are available in India. Immersion
water heaters are the cheapest and are widely used. Solar water heaters are not
available in many places because their initial investment cost is very high. These
are used in hotels and Government guest house & hotels. Augmenting the geyser
with solar water heater greatly reduces the power consumption as solar energy
is available for more than 10 months a year.
....................................................................................................................................................................
Date: 26 March
2020
Water
pumps
Many houses are fitted
with a 350 W (0.5 HP) 0r 750 W (1 HP) motor depending on pumping needs. Most of
the motors are manually controlled. Overflow of the tank is a problem. Automatic
water level controllers are not popular in India. An automatic water controller
is available at Rs 700-800 range. Suppose an automatic water controller is
used. The savings one can generate by installing it is given below.
Cost of water
level controller=Rs 500
Motor rating=
750 W
Energy waste per
day at 10 minutes of overflow= 125 WH
Payback period=3.6
yrs
The savings will
increase the initial cost of investment.
Energy
Conservation Tips in the Kitchen
1. Plan before
cooking: Avoid idle lighting of gas flame during the preparation of food.
2. Use pressure
cooker to save fuel: High-pressure cooking cooks food well and eliminates any
kind of bacteria. It also saves fuel for less time is required.
3. Optimum
quantity of water: While cooking, use optimum water for dishes. Otherwise,
cooking time is extended to evaporate the excess water-consuming fuel.
4. Reduce flame
when boiling starts: While boiling water or cooking rice, reduce the gas flame
after water gets boiled to save fuel.
5. Soak before
cooking: Soak rice, pulses or beans before cooking. It helps in cooking.
6. Shallow, wide
vessels save fuel: Shallow and wide vessels transmit heat easily rather than
thick vessels. This reduces fuel consumption.
7. Put lid on
for heat losses: While cooking we should provide lid on the vessels for
reducing heat losses.
8. The small
burner saves fuel: A cooking gas stove has a big burner and a small burner. The
small burner consumes 6- 10% less gas than the big burner.
9. A clean
burner helps saving fuel: Sometimes, the burner holes are blocked. It should be
cleaned properly.
10. Clean
vessel: The base of the vessel should be cleaned properly for proper heat
transfer. The scales at the base should be cleaned at the interval.
11. Allow frozen
food to reach room temperature: Sometimes we keep food items in the deep freezer
which becomes pretty much ice. We need to bring the food to room temperature so
that fuel can be saved by avoiding to heat food.
12. Plan the
meal timing: If all the members of the family don’t eat together then the use of
insulated vessels should be done to avoid reheating food items.
...............................................................................................................................................................
Date: 28 March
2020
Energy
Conservation Measures in Office
Similar to the
energy conservation opportunities and measures applicable in the domestic
sector, we can save a substantial amount of electrical energy by adopting simple
techniques or measures in the office as well. Most of the energy consumed in
the office is in the form of electrical energy for lighting, running AC’s,
operating office types of equipment etc. Energy can be saved by optimizing the use of
these pieces of equipment and using energy-efficient technologies. Also, the design of
office building plays on important role in energy conservation.
(1) Replace incandescent
lights with Compact Fluorescent Lights (CFL) or Light emitting diodes (LED) for
desk lamps and overhead lighting. Using CFL can save up to 50% on lighting
cost.
(2) Switch off all unnecessary lights.
(3) Turn off
light when you leave at night
(4) Use natural
lighting or day lighting
(5) Close or
adjust window blinds to block direct sunlight to reduce cooling needs during
warm months.
(6) In winter
months, open blinds on south-facing windows during the day to allow sunlight to
naturally heat your workplace.
(7) Unplug equipments
that drain energy when not in use.
(8) Turn off
the computer and monitors when not in use.
(9) Turn off photocopier
at night or use a one with the lower energy consumption during stand by mode.
(10) HVAC
ductwork should be properly insulated.
(11) Insulate
water heater, hot piping and tanks to reduce heat loss.
(12) Save paper.
(13) Carpool or
use mass transit
..............................................................................................................................................................
Date: 1 April 2020
Note down the topics. Energy consumption monitoring meters.
...................................................................................................................................................................
Date: 7 April 2020
.................................................................................................................................................................
DATE: 16 APRIL 2020
Study and make notes on demand-side management
...............................................................................................................................................................
Date: 24 April 2020
.....................
Exam paper
..........................................................................................................................................................................................................................
Date : 7 May 2020
................................................................................................................................................
Date: 18 May 2020
Make notes on these various mechanical systems. How energy efficincy has been an efeective tool?
