Energy and Cost Analysis of Residential Water Heaters PDF Download

Author: Robert A. Hoskins
Publisher:
ISBN:
Category : Energy conservation
Languages : en
Pages : 51

View

Book Description

Author: Dennis O'Neal
Publisher:
ISBN:
Category : Energy conservation
Languages : en
Pages : 76

View

Book Description

Author: Sai Mahesh Dharanikota
Publisher:
ISBN:
Category : Renewable energy sources
Languages : en
Pages : 87

View

Book Description
Non renewable energy sources have been diminishing in the recent times. Renewable energy is abundant in nature, but the use of it is very low. Lowering the energy consumption and using renewable energy, thereby decreasing the use of fossil fuels and nuclear energy would have a positive impact on our environment. The use of solar energy as an alternate resource is discussed in this research. The solar water heater is tested for its recovery rates, under normal solar radiation in static testing. The effect of solar radiation in increasing the temperature of water is studied and discussed. The solar water heater is then brought in series with an electric hot water tank, used in residential purposes. The energy consumption by the hot water tank is first calculated, by testing the recovery rates of the hot water tank. The hot water tank is then supplied with solar heated water and the recovery rates of the hot water tank are calculated. The energy consumption is calculated and the cost analysis is done in both the cases. The values of the energy consumed by the hot water tank with the use of electricity and solar heated water are compared. The DAQ system acts as an interface between the solar water heater and the hot water tank, which records and monitors the temperature data using thermocouples. The DC/AC adapter clamp and the multi meter, record the current usage by the hot water tank.

Author: Northwest Natural Gas Company
Publisher:
ISBN:
Category :
Languages : en
Pages : 13

View

Book Description

Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 462

View

Book Description

Author: Dennis L. O'Neal
Publisher:
ISBN:
Category : Dwellings
Languages : en
Pages : 76

View

Book Description

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

View

Book Description
This report evaluates the energy and direct economic effects of introducing improved electric-water-heating systems to the residential market. These systems are: electric heat pumps offered in 1981, solar systems offered in 1977, and solar systems offered in 1977 with a Federal tax credit in effect from 1977 through 1984. The ORNL residential energy model is used to calculate energy savings by type of fuel for each system in each of the ten Federal regions and for the nation as a whole for each year between 1977 and 2000. Changes in annual fuel bills and capital costs for water heaters are also computed at the same level of detail. Model results suggest that heat-pump water heaters are likely to offer much larger energy and economic benefits than will solar systems, even with tax credits. This is because heat pumps provide about the same savings in electricity for water heating (about half) at a much lower capital cost ($700 to $2000) than do solar systems. However, these results are based on highly uncertain estimates of future performance and cost characteristics for both heat pump and solar systems. The cumulative national energy saving by the year 2000 due to commercialization of heat-pump water heaters in 1981 is estimated to be 1.5 QBtu. Solar-energy benefits are about half this much without tax credits and two-thirds as much with tax credits. The net economic benefit to households of heat-pump water heaters (present worth of fuel bill reductions less the present worth of extra costs for more-efficient systems) is estimated to be $640 million. Again, the solar benefits are much less.

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

View

Book Description
The U.S. Department of Energy (DOE) recently completed a rulemaking process in which it amended the existing energy efficiency standards for residential water heaters. A key factor in DOE?s consideration of new standards is the economic impacts on consumers. Determining such impacts requires a comparison of the additional first cost of energy efficiency design options with the savings in operating costs. This paper describes the method used to conduct the life-cycle cost (LCC) and payback period analysis for gas and electric storage water heaters. It presents the estimated change in LCC associated with more energy-efficient equipment, including heat pump electric water heaters and condensing gas water heaters, for a representative sample of U.S. homes. The study included a detailed accounting of installation costs for the considered design options, with a focus on approaches for accommodating the larger dimensions of more efficient water heaters. For heat pump water heaters, the study also considered airflow requirements, venting issues, and the impact of these products on the indoor environment. The results indicate that efficiency improvement relative to the baseline design reduces the LCC in the majority of homes for both gas and electric storage water heaters, and heat pump electric water heaters and condensing gas water heaters provide a lower LCC for homes with large rated volume water heaters.

Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 1344

View

Book Description

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 20

View

Book Description
New single-family home construction represents a significant and important market for the introduction of energy-efficient gas-fired space heating and water-heating equipment. In the new construction market, the choice of furnace and water-heater type is primarily driven by first cost considerations and the availability of power vent and condensing water heaters. Few analysis have been performed to assess the economic impacts of the different combinations of space and water-heating equipment. Thus, equipment is often installed without taking into consideration the potential economic and energy savings of installing space and water-heating equipment combinations. In this study, we use a life-cycle cost analysis that accounts for uncertainty and variability of the analysis inputs to assess the economic benefits of gas furnace and water-heater design combinations. This study accounts not only for the equipment cost but also for the cost of installing, maintaining, repairing, and operating the equipment over its lifetime. Overall, this study, which is focused on US single-family new construction households that install gas furnaces and storage water heaters, finds that installing a condensing or power-vent water heater together with condensing furnace is the most cost-effective option for the majority of these houses. Furthermore, the findings suggest that the new construction residential market could be a target market for the large-scale introduction of a combination of condensing or power-vent water heaters with condensing furnaces.