A Program funded by European Union - IIEEiiee.org.ph/wp-content/uploads/2016/09/ASEAN-SHINE-Presentation-to... · Background •In ASEAN countries, inefficient air conditioners (ACs)

A Program

funded by

European

Union

PHILIPPINES

ASEAN Standards Harmonization INitiative for Energy Efficiency

Background

• Under its regional environment programme, EU SWITCH-Asia aims to promote the adoption of Sustainable Consumption and Production (SCP) among Small and Medium sized Enterprises and consumer groups in Asia.

• SCP is an attempt to reconcile the increasing demand for goods and services that respond to basic needs and bring a better quality of life, while minimizing the use of natural resources, toxic materials and emissions of waste and pollutants over the product’s life cycle, in order not to jeopardize the needs of future generations.

Background

• In ASEAN countries, inefficient air conditioners (ACs) have contributed to environmental problems due to inefficient electricity consumption as well as high GHG emissions.

• Addressing this challenge might be difficult since there are still non-tariff barriers to trade that need to be removed to enhance regional market integration for higher efficiency ACs and there is not yet any harmonized energy efficiency (EE) standard for higher efficiency ACs in the region.

Background

• ASEAN SHINE is funded under the EU SWITCH-Asia as an affiliated program.

• ASEAN SHINE aims at increasing the market share of higher efficiency air-conditioners in ASEAN through harmonization of test methods and energy efficiency standards.

• Adoption of common Minimum Energy Performance Standards (MEPS), and changing consumer purchasing attitudes in favor of energy efficient air-conditioners.

In a Nutshell

The SWITCH-Asia Project involves the promotion and deployment of energy efficient air conditioners in the ASEAN and aims at increasing the market share of higher efficiency ACs in the ASEAN through:

• Harmonization of test methods and energy efficiency (EE) standards

• Adoption of common Minimum Energy Performance Standards (MEPS), and

• Changing consumer purchasing attitudes in favor of energy efficient ACs.

The Project and it’s Impact

The progressive phasing out of inefficient ACs and the increased share of higher efficiency ACs will lead to:

• Improved efficiency at demand-side in ASEAN residential sector.

• Reduced emissions of greenhouse gases in ASEAN.

• Removal of non-tariff barriers to trade within ASEAN and enhance regional market integration.

• Result to having the same harmonized EE standard for ACs in the ASEAN region.

What has been achieved so far

• Establishment of the Policy Advisory Group (PAG) headed by DOE

• We have harmonized our Philippine National energy performance standards and testing methods (ISO 5151:2010 and ISO/IEC 16358-1:2013) to the ASEAN standards

• A regional (ASEAN) policy roadmap has already been adopted

• Capacity building for testing laboratories

• A national (Philippines) policy roadmap has already been developed

What still need to be achieved

• Adoption of a national (Philippines) policy roadmap to enforce the standards (MEPS), mobilize AC manufacturers in support of the national policy, create awareness among end-users (households), create an enabling environment for conformity assessment and market compliance, and have a time-bound plan for the progressive increase of MEPS over time

• Capacity building for AC manufacturers

• Engaging consumer via awareness campaign.

Overview of Air-Conditioners

• Air conditioners provide space conditioning (cooling only or heating and cooling) service to improve the thermal comfort of an indoor space (such as a room, entire home or larger complex).

• Air conditioners are also used in commercial and industrial buildings such as offices, shopping centers and manufacturing premises.


• Residential air conditioners, were first required to carry an energy label back in 1987 and have been subject to Minimum Energy Performance Standards (MEPS) since 2004.

• Larger three phase air conditioners (that are normally used in non-residential facilities) have been regulated for MEPS since 2001 but on a voluntary labelling scheme.

•


Types of Residential Air Conditioners

1) Conventional – the compressor motor is a constant speed AC motor and is controlled by the thermostat switch. When the room temperature is below the temperature range setting of the thermostat, it switches on the compressor motor. Once the temperature goes beyond the temperature range setting, the thermostat turns off the compressor motor.


Types of Residential Air Conditioners

2) Inverter – the compressor motor is either a fixed speed AC motor with a variable speed drive or a DC motor (variable speed) and is controlled by the “fuzzy logic” thermostat. Hence, the compressor motor can run from 1% – 100% speed. The higher the speed the higher the consumption. When the room temperature is approaching nearer to the desired temperature setting, the thermostat adjusts the speed compressor motor.

Room Air-Conditioners (EER)

• Energy Efficient Ratio (EER) measures how efficiently a room air conditioner will operate at a specific outdoor temperature. The higher the EER, the more efficient the system.

• The EER can be calculated using this equation:

𝑬𝑬𝑹 =

𝑩𝒕𝒖𝒉

𝒑𝒖𝒍𝒍𝒆𝒅𝒐𝒖𝒕

𝑾𝒂𝒕𝒕

Room Air-Conditioners (EER)

• Remember that the EER energy-efficiency rating lists how many BTUs per hour are removed or “pulled out” for each watt of power it draws. Room air conditioners generally range from 5,500 BTU per hour to 14,000 BTU per hour.

• National appliance standards require room air conditioners built after January 1, 1990, to have an EER of 8.0 or greater. A room air conditioner with an EER of at least 9.0 is recommended for milder climates, whereas in hotter climates an EER over 10 is preferred.

Overview of EER

In general, new air conditioners with higher EERs have higher price tags. However, the higher initial cost of an energy-efficient model will be recovered several times during its lifespan. Some utility companies encourage the purchase of a more efficient air conditioner by offering incentives. Buy the most efficient air conditioner you can afford, especially if you use (or think you will use) an air conditioner frequently and/or if your electricity rates are high.

Energy Savings Calculations Example 1:

Calculate the power consumption of 5000 BTUs/h room conventional air conditioner with an Energy Efficiency Ratio (EER) of 8.

Solution:

We know that:

𝑬𝑬𝑹 =

𝑩𝒕𝒖𝒉

𝒑𝒖𝒍𝒍𝒆𝒅𝒐𝒖𝒕

𝑾𝒂𝒕𝒕

Energy Savings Calculations

Given that the AC pulls out 5,000 BTUs per hour and its EER = 8, we have

𝟓, 𝟎𝟎𝟎𝑩𝒕𝒖

𝒉𝑾𝒂𝒕𝒕

= 𝟖

Therefore, its Wattage will be:

𝑾 =𝟓, 𝟎𝟎𝟎

𝑩𝒕𝒖𝒉

𝟖

𝐖 = 𝟔𝟐𝟓 𝐖𝐚𝐭𝐭𝐬


Example 2:

An old room air conditioner with EER 6.0 was replaced by a new air conditioner with an EER of 10.0. The power consumption with the old air conditioner was 1000 W. Calculate the power consumption of the new air conditioner.


Solution:

@ 𝑬𝑬𝑹 = 𝟔 (old)

𝑬𝑬𝑹 = 𝑩𝒕𝒖𝒔/𝒉

𝑾

𝟔 =𝑩𝒕𝒖𝒔/𝒉

𝟏𝟎𝟎𝟎 𝑾

𝒙 = 𝟔(𝟏𝟎𝟎𝟎) = 𝟔𝟎𝟎𝟎𝑩𝒕𝒖

𝒉


@EER = 10 (new)

𝟏𝟎 =𝟔𝟎𝟎𝟎 𝑩𝒕𝒖𝒔/𝒉

𝒘𝒂𝒕𝒕𝒔

𝑷𝒐𝒘𝒆𝒓 =𝟔𝟎𝟎𝟎 𝑩𝒕𝒖𝒔/𝒉

𝟏𝟎

𝑷𝒐𝒘𝒆𝒓 = 𝟔𝟎𝟎 𝑾


Comparison of Old EER to New EER:

EER Btus Pulledout Power (W)

6 (old) 6000 1000

10 (new) 6000 600

Power Saved when using new EER to old EER:

Power Saved = 1000 – 600 = 400 Watts


Example 3:

An old room air conditioner with EER 6.0 was replaced by a new air conditioner with an EER of 10.0. The room requires 0.75 tons of air conditioning. Calculate the difference in power consumption between the old and new air conditioners.

Energy Savings Calculations Solution:

@𝑬𝑬𝑹 = 𝟔 𝒕𝒐𝒏 = 𝟎. 𝟕𝟓

𝟏 𝒕𝒐𝒏 = 𝟏𝟐𝟎𝟎𝟎 𝑩𝒕𝒖/𝒉

= 𝟎. 𝟕𝟓𝒙𝟏𝟐𝟎𝟎𝟎𝑩𝒕𝒖

𝒉

Converted ton to Btu/h:

= 𝟗𝟎𝟎𝟎 𝑩𝒕𝒖/𝒉


therefore:

𝟔 =𝟗𝟎𝟎𝟎 𝑩𝒕𝒖/𝒉

𝑾

=𝟗𝟎𝟎𝟎

𝟔

𝑾 = 𝟏𝟓𝟎𝟎 𝑾𝒂𝒕𝒕𝒔


600 Watts

@ EER = 10

10 = 9000 BTUs/h W = 9000 BTUs/h

W 10

W = 900

Therefore, the difference in power consumption will be 1,500 – 900 =


Based on the power differences of two (2) Air-Conditioners with different EER,

We can say that:

• The Higher the Efficiency of the Air Conditioners, the less energy it uses.

• The less the energy it uses, the lower is the operating cost.

• Energy saved is your money saved.

Energy Savings Calculations Example 4:

Suppose you are comparing two air conditioners both of which last for 10 years. The less efficient air conditioner draws 1000 W of power. The more efficient one uses 800 W. Assuming that the air conditioner operates 2,400 hours annually and that the local energy cost is 10 PhP per kWh, how much money and energy can you save with the energy efficient model? Supposing the less efficient A/C costs PhP 28,000, how much money should you be willing to pay extra for the energy efficient model?


Life 10 years 10 years

Power 1000 W 800 W

Time 2400 h 2400h

Solution:

𝑬𝒏𝒆𝒓𝒈𝒚 𝒙 𝑷𝒐𝒘𝒆𝒓 𝒙 𝑻𝒊𝒎𝒆

1000 W x 2400 h = 2,400,000 Wh 2,400,000 Wh = 2,400 kWh 1,000 2,400 kWh x P 10/kWh = P 24,000

800 W x 2400 h = 1,920,000 Wh 1,920,000 Wh = 1,920 kWh 1,000 1,920 kWh x P 10/kWh = P 19,200


In ten (10) years:

Difference would be: PHP 240,000 – PHP 192,000 = PHP 48,000

PhP 24,000 x 10 years

PhP 240,000

Php 19,200 x 10 years

PhP 192,000

Energy Efficient AC’s

What are the benefits of installing High Efficiency Air Conditioners?

1. Lower energy bills

High efficiency air conditioners consume less energy than lower-efficiency models, which means you won’t have to pay as much for your monthly energy bills. The bigger jump you make from the EER rating of your current model to the EER rating of a high efficiency air conditioner, the more of a decrease you’ll see in your energy costs.

Energy Efficient AC’s

2. Better performance

High efficiency air conditioners typically come with features like variable speed air handlers and two stage compressors that not only allow them to consume less energy, but also make your home more comfortable. Features like these will allow for more even cooling and less temperature swings in your home.

Energy Efficient AC’s 3. Longer operating life

Because high efficiency air conditioners are built to minimize on-and-off cycling and maximize efficiency, they typically experience less needs for repairs and longer operating lives than lower-efficiency units.

4. No worries about Freon

Any new high efficiency air conditioner will use an environmentally-friendly refrigerant like R410a. That means you won’t have to deal with the rising costs and phase-out of Freon because you’ll already be using the new standard refrigerant!

THANK YOU Please visit aseanshine.org for more information.

Disclaimer: The document has been produced with the assistance of the European Union. The contents of this document are the sole responsibility of the authors and can in no way be taken to reflect the views of the European Union.

A Program funded by European Union - IIEEiiee.org.ph/wp-content/uploads/2016/09/ASEAN-SHINE-Presentation-to... · Background •In ASEAN countries, inefficient air conditioners (ACs)

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