Lessons Learned From A Failed Energy Efficiency Project

INTRODUCTION
You would think that energy efficiency is relatively simple: perform an energy audit, install the retrofits and then reap the energy savings. Unfortunately, it doesn”t always work that way. We performed an energy assessment of several stores of a major retail chain in the San Francisco Bay Area and identified a handful of low-cost retro-commissioning measures that had very promising potential. We quantified the expected savings and costs and returned after the project was installed. We then measured the savings using various methods and found either minimal or negative savings. The problem we discovered was that on nearly every measure, the contractors had repaired the hardware, but through various means had ensured that energy savings would not occur. This paper provides an account of the failed project at one store and the steps we took to remedy it. Specifically, this paper stresses the importance of Measurement and Verification and Commissioning of the retrofits.

DESCRIPTION OF THE BUILDING
The store, located in San Francisco, belongs to a well-known national retailer, whose name we will not divulge. The store is an aggregate of 3 buildings which have been joined together to comprise almost 1,000,000 square feet, of which over half is selling floor. Stock rooms and offices comprise the remainder of the space. The different buildings range between 8 and 11 stories tall.

The three buildings comprising the store were built at different times from the 1920s to the 1980s. Originally the buildings had different air handling, chilled water and hot water systems. Over the years, through energy conservation and facility improvement measures, the chilled water systems have been merged into one system.

Mortgages for young adults buying, renewing or furnishing your home

The mortgages for young adults are not only mortgages, mere money on loan: they are true opportunities, that you have to seize on as soon as possible. Indeed, to choose a mortgage for young adults conveniently gives to the person who decides to stipulate it the possibility to buy, to renew or simply to furnishing his home. It’s also the occasion to build something that is certain and durable. The mortgages for young adults are to all intents and purposes special loans created for boys and girls who are between 18 and 29 years old, and who have intention to finance the purchase of the building that will become their home, or to renewing an apartment that they own already. And, as you can simply gather from it, the mortgages for young adults have a lot of facilitations. Principally, the advantages of the mortgages for young adults are four: no costs (with the only exception of the cost for the technical valuation of the building, that is charged to the client usually); the financing covers up to the eighty percent of the total cost of the building (with an upper-limit of 200 thousands euro); the duration of the loan is between five and thirty years; an operator follows the client step-by-step during the stipulation of the mortgage. In addition to this, the mortgages for young adults allow you to choose between various solutions: a variable-rate mortgage, with installments that are very easy to pay thanks to the low interest rate; a fixed-rate mortgage, with an interest rate that is fixed and more static; a variable-rate mortgage with a fixed ceiling and the rate cannot exceed it; a variable-rate mortgage with fixed installment, a solution that mix the advantages of the variable-rate with the possibility to fix the installment depending on your saving capacity. At last, practically all the mortgages for young adults can be consulted online comfortably: this way the person who decides to stipulate a mortgage can evaluate the various offers and he can choose the best solution from his computer directly, with no useless wastes of time.

Supercharger Calculators Explained

The basics of supercharger calculators…

Supercharger calculators are based on several basic equations that govern the performance and the physical rules that bind superchargers. At the very heart of the matter, superchargers work on the Ideal Gas Law where PV = NRT Pressure x Volume = Number of gas molecules X a constant X temperature. What superchargers do, is that they feed the engine with more air molecules, by over feeding the engine with forced air. This air is forced into the engine due to the supercharger blowing more air into the engine inlet, than the engine would normally breathe under its own device. The result of this ‘forced induction’ can be observed and measured in one of two aspects: Pressure or Temperature. In an ideal world, with a supercharger that has perfect adiabatic efficiency, we are able to feed the engine twice as many air molecules (to double the horsepower figure), by doubling the inlet air pressure (to 2.0 atmosphere or what we call 15 pounds per square inch (PSI) of boost). In the real world, superchargers are not 100% efficient, and so it is possible that doubling the inlet boost pressure gives us less than double the horsepower due to the following:

P*V=n*R*T Pressure increases by a factor of 2 Volume is fixed Number of gas molecules increases by 80% (or a factor of 1.8) Temperature increases by a factor 11% (or a factor of 1.11) If we look at our equation above we can see: 2*P*V = 1.8*N*R* 1.11T The equation is balanced as 2.0X1 = 1.8 * 1.11 (the rise in pressure is equaled by the combined effect of the rise in airflow and the rise in temperature).

Your Shopping Habits Reveal Your Personality

Do you hunt for bargains or do you shop impulsively? Either way, your shopping habits can reveal much about your personality, says a psychiatrist. Here are 8 types of shoppers and what their buying habits show. Find out which type you belong to.

LIST SHOPPER – You make shopping lists because you consider your budget and the needs of your household carefully. In general this means that you are considerate of others’ feelings and needs, as well as organized and reliable, but sometimes you are not as flexible as you might be-and that could cause problems. However, the female list shopper tends to deal well with her children. Her children know that they can depend on her.

SCHEDULED SHOPPER – Shopping only on certain days and carefully planning the shopping in advance give you more time for leisure and other things. You know how to save time and money and serve well-prepared meals, but you tend to have a rigid personality, always wanting to keep to some schedule. Your inflexibility can occasionally cause you to be depressed. Also, your compulsive behavior can drive others away because no one can relax around you.

Bamboo Kitchen Cabinets – A Look at Bamboo Cabinets

Selecting wood based products is harder these days since we want to find products made from sustainable produced raw materials. What can bamboo do to fulfill these needs? Can it really work for your kitchen decorating needs?

One of the main things we have to consider when choosing a wood species for any wood product is how it looks in our home. While making responsible choices for the environment is attractive, it loses some of its appeal if the final result is no the look we had hoped for. But bamboo can come through with the look that your to create the aesthetic appeal you are looking for.

Bamboo is grown in many areas of the world, but like any harvested products some growers are more concerned with using a sustainable process, while others are just in it for a fast buck. Some areas like Costa Rica have a fairly good record for sustainability in the overall process of growing and cutting of bamboo. Bamboo can usually be cut when it is about five or six years old. It is a member of the grass family, so it will grow back quickly.

Overview Of Types Of Tiles

Quarry tile is made by combining natural clays (shale) which makes the color red. Other colors are available in Quarry tile as well. These colors are made by included different dyes to change the color of the clay. The tiles are used primarily for flooring. It is both water and weather resistant which makes it ideal in climates that have severe weather changes.

Terrazzo tile is similar to Agglomerate tile in the way it is made. This tile is one of the durable tiles on the market. It is suitable for any use after it is sealed. It wears well in heavy traffic areas and is resistant to water and stains.

Mexican Tile or Terracotta is handmade tile which varies in texture, color and appearance. It comes in various styles, colors and sizes and usually requires some type of sealing. This tile is usually used in courtyards or patios where a rustic charm is preferred. The tile gives off a cool temperature in heat and is very popular in regions where the temperatures are extremely high.

Unique Interior Design Ideas For A Tea Cafe

Opening up a new Tea Caf and stuck for Interior design ideas? Then you have found the right article. Taking ideas from around the world and throughout history you will be sure to find an idea or inspiration for your own tea caf Interior design.

Tea and tea cafes have a long history as people have been drinking and enjoying tea for centuries so your interior design options are open to many possibilities. Some of our tea caf interior design suggestions are:

Create a tea inspired forest from walls covered in rain forest landscapes to tea leaves actually growing in your tea caf. Allow your forest inspired interior design reflect the natural environment of tea and give visitors a unique and tea inspired experience
Collect tea tins from around the world and fill your shelves will them. Interior design that is inspired by a true passion for a product will send an authentic and honest message to visitors who may also share this passion.
Adorn your interior walls with a tea timeline highlighting major tea events like the first tea caf, the Boston tea party and how tea was introduced to the world. Tea has a long and fascinating history which will entice your clientele back so that they can read more about it.
Fill your tea caf walls with framed images of famous tea drinkers. Your visitors will love identifying with their favourite celebrities, especially if they like the same type of tea.
Research traditional Interior design from the worlds famous tea growing regions and their tea cafes. India, China and Japan are all great tea growers and drinkers and you may be inspired by their tea caf culture.