What is the difference between hot air drying and waste heat drying in dishwashers?

Creating a cozy and peaceful summer home requires carefully selected appliances that enhance comfort without sacrificing style and efficiency. Appliances 4 Less springfield offers residents of Bolivar, aMarshfield, Willard, Nixa and Seymour a selection of opened, scratched and dented appliances that are perfect for your summer living. Here is our guide to the must-have appliances for a cozy summer home.

The Dishwasher helps us get rid of the washing-up trouble with its powerful cleaning power. Can Be Full of joy to open the door, but see the dishware hanging beads of water, which is really disappointing. Behind this is the dishwasher hot air drying and waste heat drying in the comparison of the two technologies. They have their own advantages and disadvantages, to understand their advantages and disadvantages, to choose the right dishwasher, say goodbye to wet dishes.

1、Drying by waste heat

(1) the secret of the principle

Waste heat drying it uses the residual heat from the last high-temperature rinse of the dishwasher to dry the dishes. When the rinsing is over, the inside of the dishwasher is like a warm little greenhouse. The water vapor in the confined space meets the relatively cold bulkheads and condenses into water droplets, which flow down the bulkheads back to the bottom drainage system, so as to achieve the drying of tableware.

(2) strengths

The biggest bright spot of waste heat drying is energy saving. It doesn't require extra energy to generate heat, and it takes advantage of every last bit of residual heat to get an energy efficiency rating that can save us a lot of money on our electricity bills. For those who have higher electricity costs, or pay great attention to energy conservation and environmental protection of the family, waste heat drying is a good choice.

(3) drawbacks

①．It is obviously affected by humidity

The drying effect of waste heat drying is easily affected by the external environment. In the wet rainy season, the moisture in the outside air makes the humidity in the cabin rise sharply, which leads to the decrease of the drying efficiency. Cutlery that dries quickly can become wet and even harbor bacteria.

②. High sealing requirements

If the Chamber of a dishwasher isn't tightly sealed, heat and steam can escape through even a small crack. This will not only affect the drying effect, but also increase the energy consumption of the dishwasher.

③. There are requirements for the material of tableware

Waste heat drying is more friendly to ceramic tableware. The good thermal conductivity of ceramic enables it to quickly absorb waste heat and achieve efficient drying. The drying efficiency can reach about 85% . But for plastic products, the residual heat of drying is inadequate. The low specific heat capacity of plastic will make water vapor condense prematurely, forming a“Cold nuclear effect” on the surface of the tableware, resulting in a drying rate of less than 60% , plastic tableware is difficult to completely dry.

④. Hidden increase of energy consumption due to long drying time

Although there is no additional energy consumption in waste heat drying, the drying stage is 2-3 times longer than the hot air system, and long-term operation will lead to an increase in the average daily power consumption of the whole machine by 0.15-0.2 degrees. For households with an average of more than three uses a day, this cumulative effect can wipe out the energy savings and may even require more energy than hot air drying.

(4) applicable scenarios

Waste heat drying is suitable for electricity peak, electricity is more expensive, or for environmental protection requirements are very high, and the climate is relatively dry in the region, the frequency of household use is not high. For example, some young people living alone, less use of tableware, drying speed is not high, the residual heat of the dishwasher drying can meet their needs.

2、Hot air drying

(1) the secret of the principle

Hot air drying built-in PTC ceramic heater, electric energy can be converted into heat in an instant, releasing a lot of heat. With the centrifugal fan, forming a directional flow of hot air. The hot air blasts over the surface of the dishes, speeding up evaporation, while the condenser quickly converts the moisture in the moist air into liquid water, which is pumped out of the dishwasher to keep the cabin cool and dry. Some high-end aircraft also use Dynamic equilibrium technology, which uses sensors to monitor cabin humidity in real time and precisely adjust the intensity and direction of the hot air flow to keep the cabin humidity at an ideal range of 30% to 40% .

(2) strengths

①. High drying uniformity

Hot air drying whether it is for ceramic, glass or plastic tableware, it can be treated equally to the same outstanding performance to complete the drying task. By means of forced convection, the drying uniformity of all kinds of materials is increased to more than 95% , especially in the dead corner area of tableware, such as the bottom of the cup and the edge of the bowl, where hot air drying can also go deep, the water will be completely removed, so that every corner is dry and clean.

②. Strong long-acting drying ability

In the long-term drying test, the residual heat drying will appear 5%-8% humidity recovery within 2 hours after the end of the procedure, so that the tableware will face the threat of humidity again. The hot air system through continuous ventilation, the humidity fluctuation is controlled within ± 2% , so that the total number of colonies after 72 hours of tableware storage is reduced by two orders of magnitude, to escort our health.

③. Smart energy upgrades

The new generation of hot air drying products adopts intelligent frequency conversion control technology. Through PID temperature algorithm, the heating power is automatically adjusted according to the humidity in the cabin, which saves more than 30% energy compared with the fixed frequency model. Take a typical three-person household as an example. The difference in annual power consumption can be controlled within 20 degrees Celsius, which is equivalent to reducing carbon dioxide emissions by 10 kg. This not only meets our demand for efficient drying, but also contributes to environmental protection.

(3) drawbacks

Although hot air drying has been greatly improved in terms of intelligent energy saving, its energy consumption is still slightly higher than that of waste heat drying. This is because hot air drying requires additional electrical energy to generate heat and drive fans. However, from the drying effect and convenience point of view, this increase in energy consumption is also worth it.

(4) applicable scenarios

Hot air drying suitable for multi-family, tableware use, or drying speed and effect of higher requirements, and do not care about energy consumption slightly higher users. For example, there are children or the elderly family, tableware hygiene and drying is very important, hot air drying dishwasher can provide them with more reliable security.

3、The ultimate choice

(1) comprehensive consideration of needs

In the choice of dishwasher drying method, we can not just look at its advantages or disadvantages, and to consider their actual needs. If you live in a dry climate, don't use your home very often, and value energy efficiency, a heat-drying dishwasher may be for you.

(2) be clear about your preferences

If you have a large family, a large use of tableware, on the drying speed and effect of higher requirements, then the hot air drying dishwasher is your best choice.

Conclusion

In short, no one drying method is absolutely perfect, only the most suitable for their own is the best. I hope you understand the characteristics of hot air drying and waste heat drying, can choose a satisfactory dishwasher, from the end of the tableware moisture troubles, enjoy a more comfortable and convenient kitchen life.